Various communication systems may benefit from communication between two different radio access technologies. For example, a long term evolution network may benefit from receiving resource availability information from a wireless local area network. A method includes receiving a request from a first RAT at a network node in a second RAT, and at least partially rejecting or at least partially accepting the request. The method also includes sending an indication of the at least partial rejection or at least partial acceptance to the first radio access technology, where the indication is used in determining whether to activate or continue radio access aggregation.